Pin-guard.



G. 0'. NILSSON.

PIN GUARD;

APPLICATION FILED APR. 21, 1909.

Patented may 28 COLUMBIIA PLANOGRAPH CO-JVASHINOTON. D- C.

UNITED STATES PATENT OFFICE.

CHARLES oJmLssoN, or new YORK, N. Y.

PIN-GUARD.

Specification of Letters Patent.

Application filed a rnav, 1909. Serial No. 492,480.

To all whom it may concern a citizen of the United States, residing in the borough of Queens, county of Queens, city and State of New York, have invented a new and useful Pin-Guard, of which the following is a specification.

The object Ihave in view is the production of a pin guard to prevent pins accidentally becoming disengaged from the fabric. a v p The invention is applicable to all forms of devices employing pins, such for example, as

scarf pins, hat pins, brooches, studs and similar articles.

Further objects of my inventionwill ap-' pear from consideration of the embodiment thereof set forth in the following specification and drawings considered together or separately.

In the drawings: Figure 1 is a view of a scarf pin and a guard, embodying my I invention, attached thereto. Fig. 2 is a sectional view of the same device showing it about to be attached to the pin, this section being taken on the line 22 of Fig. 3. Fig.

3 is a sectional view taken on the line 33 of Fig. 2. Fig. 4 is a sectional view of the device illustrated in Fig. 2, showing the uard clasped uponthe pin. Fig. 5 is a front view of the same. Fig. 6 is a back view, the pin not being shown in this view. Figs. 7 and 8 are views of a modification of the invention,-Fig'. 7 illustrating the guard about to be attached to the pin and Fig. 8'

showing it' in place.

' Figs. 9, 10 and 11 are modifications.

' In all of the views, like parts are desigengagement with the'pin; one point being upon one side'of the scarf pin and the other two points of engagement. being'upon the opposite'side. I prefer to make one of these points in the form of a loop straddlingthe scarf pin and pivoted to thetwo arms, such 7 arms engaging the side'of the pin opposite the engaging point loop, thus forming the other two points of contact. l

Referring to Fig. 2, the guard is shown V as comp-rising arms 1 and 2, secured together Be it known that I, CHARLES O. NILssoN,

by a pivot 3. These arms are normally sepa- Patented May 28,1912.

rated by a spring 4. A loop 5 surrounds the pln 6,'and has its free ends connected to the pivot 3. The loop straddles the pin, and the arms 1 and 2 are caused to engage against the pin by the action of the spring 4, thereby grasping the pin between the three points of contact, thus holding the The details of the deguard in position. vice may be varied as desired.

The parts specifically illustrated are formed as followsz'The arms 1 and 2 are substantially alike. Each is provided with a pair of ears 7, containing openings which form bearings for the pivot 3. The lower arm 2, as shown, is slightly broader than the upper arm 1, the ears of the lower arm lying outside of the ears of the upper arm. This arrangement may be varied as desired,

On one end of each. arm. is a notch 8, which is adapted to bear against the pin. At the other end of each arm are two cars 9. The ears of each arm engage together and form alining devices, so Ithat the two arms will work properly together.- The spring 4 is formed with a coiled center portion, through which the pivot 3 passes, the free ends engaging with the two arms andlying between the ears 99, such ears tending to keep the free ends of the spring in position. The loop (shown as formed of a piece of sheet metal) has openings through which the pivot pin passes. The ends'of the loop are broadened out, forming fingers or arms 10'1O (best shown in Fig. 4). Thesefingers or arms engage with the arms land2 when the guard is in the open position (illustrated in Fig.2). They thereby pro- .duceadevice for holding the loop in proper .alinement intermediate the arms 1 and 2; ,in other words, when the guard -is in open position (shown in Fig. 2) the loop 5 and arms will be parallel. This greatly facilitates introduction of the loop around the pin. i

surface of the loop where it comes in contact with the pin, the metal of which the For the purpose of reducing the bearing.

angles to the portion through which the pivot 3 passes, which reduces the width of the material of the loop in engagement with the pin and atthe same time permits the loop to be of sufficient strength. H

- In Figs. 7 and 8 a modification is illustrated in which the material forming the loopis not so twisted; but this will result in an undesirable width of engaging surface with the pin unless the sheet material of which the loop is made is made thicker,

thereby permitting a narrower loop.

According to my invention the guardis adjusted upon the pin by pressure of the operators fingers applied to the ends of the arms 1 and 2 opposite the ends at 8-8. This will compress the spring 4: and by engagement of the arms 1 and 2 with the fingers 1010, the loop 5 is held in position between the two arms. The loop is then introduced around the pin and the guard is moved upward along the pin to the desired position. Upon pressure being released on the arms 22, the spring 4 will move the arms to cause their notched ends 8-8 to engage with the pin. This will engage the pin between the loop 5 on one side and the notches 88 on the other, and will tightly grasp the pin and hold the guard in position. The pin, therefore, will not be cut by the engagement of the guard with it, as is the case in guards in which there is not the same three point engagement.

The device may be adjusted on the pin with great facility as it is but necessary for the pin to pass through the loop, and the opening in the loop may be made of quite large size. Also the device may be used on pins of greatly varying diameter, as the gripping action is secured between surfaces, which are quite far removed. Furthermore, should the pin have a tendency to come out of the fabric, the engagement of the latter with one of the arms 1 or 2 will exert a pressure upon said arm tending to move said arm in the direction in which the spring 4 tends to move it, thereby supplementing the action of the spring and tightening the grip of the guard on the pin, as will be obvious from consideration of Figs. 4: and 8.

Fig. 9 illustrates a modification of the invention in which the entire device is made of a single piece of spring metal. The arms have notches 8 in their extremities, while the intermediate member 5 is provided with an aperture 12, thereby constituting a loop which straddles the pin. The curved portions 13 constitute springs and tend to force the arms together and grasp the pin between the three points of contact.

Fig. 10 shows a modification in which the loop is formed integral with the spring.

The spring 45* is provided with an intermediate portion 5", constituting a loop which is adapted to straddle the pin.

The modification illustrated in Fig. 11 employs integral arms andspring, as that illustrated in Fig. 9. The loop is in the form of a separate piece 14, soldered or otherwise secured to the spring portion of the device. In all of these modifications the loop will be properly alined when the arms are in separated position.

In accordance with the provisions of the patent statutes, I have described the principles of my invention, together with the apparatus which I now consider to represent the best embodiment thereof; but I desire to have it understood that the apparatus shown is merely illustrative and that the invention can be carried out in other ways withinthe scope of the appended claims.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is 1. A pin guard having two swinging spring actuated arms adapted to engage with one side of a pin, and a loop connected to said arms and adapted to straddle and engage the other side of the pin.

2. A pin guard having two pivoted spring actuated arms, and a loop between said arms adapted to straddle the pin and draw the same against the arms.

3. A pin guard having two spring actuated arms having separable ends, a loop between said arms adapted to straddle the pin and draw the same against the arms, and means for holding the loop in alinement with the arms when the latter are separated.

4. A pin guard having two spring actuated arms with notched ends, a pivot pin connecting said arms, and a loop secured to said pivot pin and adapted to force a pin to which the guard is applied against the notched ends of said arms.

5. A pin guard having two arms, a pivot pin connecting the arms, a spring engaging the said arms adapted to hold the same in engagement with the pin to be guarded, and a loop secured to the pivot pin formed of sheet metal and twisted so as to engage the edge of the loop with the pin to be guarded.

6.1A pin guard having arms with notches therein, a pivot pin connecting said arms, a spring surrounding the pivot pin and cooperating with said arms, and a loop having fingers adapted to aline it with the notches in said arms and adapted to surround the pin to be guarded and to force the same into engagement with notches in said arms.

7. A pin guard comprising a loop arranged to cooperate with one side of the pin,

a pivot pin to which said loop is secured, This specification signed and witnessed two arms mounted on said pivot pin and arthis 22nd day of April, 1909. ranged to engage the pin to be guarded on CHARLES O NILSSON the opposite side from that engaged by said 100p, and a spring coiiperating with the Witnesses:

arms and arranged to yieldingly hold them J OHN L. 'Lo'rsoH, in engagement with the pin to be guarded. WM. J. CASEY.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,

Washington, D. O. 

